SIMULATION STUDY OF REGENERATIVE INVERTER FOR DC TRACTION SUBSTATION

초록

In DC traction substation, which generates 1.5kV DC line voltage with 12-pulse diode rectifiers, has the rise in the DC line voltage because it can’t absorb the regenerative power caused by electric brakes of a train. To solve this problem, the IGBT regenerative inverter is installed and recycles the surplus regenerative power by delivering it to the supply grid. In this paper, the regenerative motion operation mode of 3-phase PWM AC/DC converter is used to deliver the regenerative power to the supply grid and stabilizes the DC line voltage. It is confirmed that the high quality regenerative power is delivered to the supply grid using computer simulations"